Bill, There are kits available that include the rubber diaphragm that allow you to rebuild the valve. The valve is disassembled by bending the little tabs that hold it together, and basically you clean everything up, put in the new diaphragm and reassemble. There are companies that will do this for you also, and that may be a simpler way to go. New valves are also available, (check NAPA) there are some issues with the new valves however. The issues are that they are steel, not brass, and they do not include the temperature sensing bourdon tube the originals came with. I would rebuild the original if it were my car, as I have had both and prefer the original. Others may have a source for the kit and/or rebuilders but you might try looking in Hemmings or Google search. My car is a 300G so I can't say for sure the '57s had the bourdon tube, but I'll bet they did. Bob J _____ From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Bill Leahy Sent: Thursday, January 15, 2009 3:11 PM To: Chrysler300 list Subject: [Chrysler300] 57 heater control valve one of the many things to improve or still fix in the first place is my heater control valve / it leaks badly. so, i finally have it out of the car and it looks like trouble trouble trouble / rusty and carroded. are they fixable or do ya replace them suckers? or do ya block them off and close one eye? billllllllll in not so sunny kennewick washington [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/